Fixing method and structure of inflator, and airbag apparatus

摘要

In order to provide a fixing method and a structure of an inflator, in which the working efficiency in fixing the inflator is excellent not requiring fastening nuts and the number of parts is also reduced, a polygonal cylindrical inflator holder (50) is provided with clearance holes (52, 54, 56, and 58) and three press parts (62, 64, and 66). An incircle internally touching the first, second, and third press parts (62, 64, and 66) is smaller in diameter than the external periphery of an inflator (40). Therefore, the inflator (40) is pushed into the inflator holder (50) in strong friction with the press parts (62, 64, and 66), and finally the entire inflator (40) is accommodated into the inflator holder (50). After a convex portion (44) of the inflator (40) is retained into the clearance hole (56), the extended piece (70) is folded upright toward the center of the end face of the inflator holder (50).